No more falling off chains! The Flip Guide is our latest solution, which allows you to make adjustments at lightning speed. To easily clean the chain or remove the crank, you can fold the top guide into the service position by hand. Once the work is done, simply return the guide to the raiding position until it clicks firmly into place. This means your chain runs safely on the roughest roads.For further adjustment, the Flip Guide has a sophisticated micro adjustment system. The guide can be finely adjusted using a hexagonal screw so that it lies perfectly on the chain line.It's very simple: tighten or loosen the screw to position the guide in the middle of the chain. Features- For direct mount mounting- Weight: 29 g (+/- 5% weight tolerance)- Material: plastic- Easy installation without dismantling the crank- Micro adjustment system for fine adjustment- Compatible with oval chainrings